Erik Gunst Lund Posted February 4, 2013 Share #1  Posted February 4, 2013 Advertisement (gone after registration) A quick DIY focus tap for 50mm Summicron. All the talk about focusing the new 50mm 2.0 Summicron APO and I missed the focus tap on my new 50mm 2.0 Summicron... I really like the one on 28mm 2.8 Elmarit Asph so I thought why not make a copy, a bottle of liquid Latex and Epoxy is all that is needed. Works really well, friction and focus throw etc are all equal. Have fun!  The finished result  And the 'donor' lens used as template  The latex mould Link to post Share on other sites More sharing options...
Advertisement Posted February 4, 2013 Posted February 4, 2013 Hi Erik Gunst Lund, Take a look here Focus tap - DIY for 50mm Summicron. I'm sure you'll find what you were looking for!
Erik Gunst Lund Posted February 4, 2013 Author Share #2  Posted February 4, 2013 From the front  Thanks for looking! Link to post Share on other sites More sharing options...
Guest MarcRF Posted February 4, 2013 Share #3  Posted February 4, 2013 I'd fear the epoxy would get inside the mechanics on the elmarit asph to be honest. since it is my favourite lens I wouldnt do it. still a great idea as I love focusing tabs  great work! Link to post Share on other sites More sharing options...
Numbers Posted February 4, 2013 Share #4 Â Posted February 4, 2013 Well done, Erik! Â Best Christian Link to post Share on other sites More sharing options...
Printmaker Posted February 5, 2013 Share #5  Posted February 5, 2013 I'd fear the epoxy would get inside the mechanics on the elmarit asph to be honest. since it is my favourite lens I wouldnt do it. still a great idea as I love focusing tabs great work!  It looks like the latex was used to create the form then the tab was formed with epoxy, painted and attached to the lens with a drop or two of epoxy.  Right Erik? Nice work. Did you use a thickener like micro balloons? I have the same lens and think I'll try this myself.  Thanks! Link to post Share on other sites More sharing options...
Ecar Posted February 5, 2013 Share #6 Â Posted February 5, 2013 Nice job, Erik. Is the tab easy to remove, in case you want to restore the lens to its original condition? Link to post Share on other sites More sharing options...
rramesh Posted February 5, 2013 Share #7 Â Posted February 5, 2013 Advertisement (gone after registration) Sorry, I think I will use it the way the Gods at Leica intended us to to use it. Link to post Share on other sites More sharing options...
250swb Posted February 5, 2013 Share #8 Â Posted February 5, 2013 Very nice work Erik. Â Â Steve Link to post Share on other sites More sharing options...
Erik Gunst Lund Posted February 5, 2013 Author Share #9  Posted February 5, 2013 It looks like the latex was used to create the form then the tab was formed with epoxy, painted and attached to the lens with a drop or two of epoxy. Right Erik? Nice work. Did you use a thickener like micro balloons? I have the same lens and think I'll try this myself.  Thanks!  Yes thats it, except I used a screw to keep it on, I know people will jump in their chair but for me as a pro it's a tool, no more no less, I don't care much about resale value also all of my modified lenses has sold without problems.  I didn't use micro balloons... will look into that  Thanks for all the comments! I'm not religious so... Link to post Share on other sites More sharing options...
gyoung Posted February 6, 2013 Share #10  Posted February 6, 2013 I personally find the tabs really useful on the small/short lenses, fortunately all mine have them. It would even be an improvement on the 50 Summilux imho, it certainly works well on my Summicron 50  You could market that,there are many far less useful items made as third party gizmos  Gerry Link to post Share on other sites More sharing options...
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